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Groups > linux.kernel > #1425760 > unrolled thread
| Started by | Pavel Machek <pavel@ucw.cz> |
|---|---|
| First post | 2016-06-18 18:10 +0200 |
| Last post | 2016-06-19 01:40 +0200 |
| Articles | 3 — 1 participant |
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N900, wl1251: wifi is now slow, even with powersave off Pavel Machek <pavel@ucw.cz> - 2016-06-18 18:10 +0200
Re: N900, wl1251: wifi is now slow, even with powersave off Pavel Machek <pavel@ucw.cz> - 2016-06-19 01:00 +0200
Re: N900, wl1251: wifi is now slow, even with powersave off Pavel Machek <pavel@ucw.cz> - 2016-06-19 01:40 +0200
| From | Pavel Machek <pavel@ucw.cz> |
|---|---|
| Date | 2016-06-18 18:10 +0200 |
| Subject | N900, wl1251: wifi is now slow, even with powersave off |
| Message-ID | <rLqYN-6hn-3@gated-at.bofh.it> |
Hi! Ping to N900: 64 bytes from maemo (10.0.0.8): icmp_seq=187 ttl=64 time=124 ms 64 bytes from maemo (10.0.0.8): icmp_seq=188 ttl=64 time=131 ms 64 bytes from maemo (10.0.0.8): icmp_seq=189 ttl=64 time=66.7 ms ^C --- maemo ping statistics --- 189 packets transmitted, 189 received, 0% packet loss, time 188742ms rtt min/avg/max/mdev = 4.382/101.866/453.145/42.395 ms root@duo:/data/pavel# Now on n900: pavel@n900:/my/tui/ofone$ sudo iw dev wlan0 set power_save off pavel@n900:/my/tui/ofone$ That should bring ping back to < 2 msec range, but nothing changes: root@duo:/data/pavel# ping maemo PING maemo (10.0.0.8) 56(84) bytes of data. 64 bytes from maemo (10.0.0.8): icmp_seq=1 ttl=64 time=78.5 ms 64 bytes from maemo (10.0.0.8): icmp_seq=2 ttl=64 time=101 ms 64 bytes from maemo (10.0.0.8): icmp_seq=3 ttl=64 time=18.2 ms 64 bytes from maemo (10.0.0.8): icmp_seq=4 ttl=64 time=37.5 ms 64 bytes from maemo (10.0.0.8): icmp_seq=5 ttl=64 time=58.2 ms 64 bytes from maemo (10.0.0.8): icmp_seq=6 ttl=64 time=77.6 ms 64 bytes from maemo (10.0.0.8): icmp_seq=7 ttl=64 time=98.3 ms 64 bytes from maemo (10.0.0.8): icmp_seq=8 ttl=64 time=118 ms 64 bytes from maemo (10.0.0.8): icmp_seq=9 ttl=64 time=35.8 ms 64 bytes from maemo (10.0.0.8): icmp_seq=10 ttl=64 time=55.7 ms ^C --- maemo ping statistics --- 10 packets transmitted, 10 received, 0% packet loss, time 9034ms rtt min/avg/max/mdev = 18.298/68.025/118.223/30.756 ms root@duo:/data/pavel# Any ideas what is going on there? Best regards, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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| From | Pavel Machek <pavel@ucw.cz> |
|---|---|
| Date | 2016-06-19 01:00 +0200 |
| Message-ID | <rLxnz-1RH-1@gated-at.bofh.it> |
| In reply to | #1425760 |
Hi! > Ping to N900: > > 64 bytes from maemo (10.0.0.8): icmp_seq=187 ttl=64 time=124 ms > rtt min/avg/max/mdev = 4.382/101.866/453.145/42.395 ms > root@duo:/data/pavel# > > Now on n900: > > pavel@n900:/my/tui/ofone$ sudo iw dev wlan0 set power_save off > pavel@n900:/my/tui/ofone$ > > That should bring ping back to < 2 msec range, but nothing changes: > > root@duo:/data/pavel# ping maemo > PING maemo (10.0.0.8) 56(84) bytes of data. > 64 bytes from maemo (10.0.0.8): icmp_seq=1 ttl=64 time=78.5 ms > rtt min/avg/max/mdev = 18.298/68.025/118.223/30.756 ms > root@duo:/data/pavel# > > Any ideas what is going on there? v4.4: works ok, rtt min/avg/max/mdev = 2.111/2.243/2.524/0.150 ms v4.5-rc0: can't get wifi to work. v4.6: slow as described. v4.7-rc3: slow as described. Even confirming you see same problem would help :-). Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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| From | Pavel Machek <pavel@ucw.cz> |
|---|---|
| Date | 2016-06-19 01:40 +0200 |
| Message-ID | <rLy0h-2kX-1@gated-at.bofh.it> |
| In reply to | #1425873 |
On Sun 2016-06-19 00:55:54, Pavel Machek wrote: > Hi! > > > Ping to N900: > > > > 64 bytes from maemo (10.0.0.8): icmp_seq=187 ttl=64 time=124 ms > > rtt min/avg/max/mdev = 4.382/101.866/453.145/42.395 ms > > root@duo:/data/pavel# > > > > Now on n900: > > > > pavel@n900:/my/tui/ofone$ sudo iw dev wlan0 set power_save off > > pavel@n900:/my/tui/ofone$ > > > > That should bring ping back to < 2 msec range, but nothing changes: > > > > root@duo:/data/pavel# ping maemo > > PING maemo (10.0.0.8) 56(84) bytes of data. > > 64 bytes from maemo (10.0.0.8): icmp_seq=1 ttl=64 time=78.5 ms > > rtt min/avg/max/mdev = 18.298/68.025/118.223/30.756 ms > > root@duo:/data/pavel# > > > > Any ideas what is going on there? > > v4.4: works ok, rtt min/avg/max/mdev = 2.111/2.243/2.524/0.150 ms > v4.5-rc0: can't get wifi to work. v4.5: slow as described. > v4.6: slow as described. > v4.7-rc3: slow as described. Hmm. If wifi is truly broken in -rc0, I'm looking for some fun bisect :-(. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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